Two possible lewis structures for sulphate ion

Particle model to predict what will happen if a sharp object creates a hole in the soccer ball

What is the mass of 0.46 mol of mgcl2

Scientists often have to deal with numbers that are either very large or very small. for example, the radius of the sun is approximately 696,000 kilometers, while bacterial cells are as small as 1.9 × 10-4 millimeters. express each number in an alternate form.